Add model selector to freebuff with per-model queues #6173

Job	Run time
build-and-check	2m 59s
test-integration-packages/billing	1m 3s
test-integration-packages/internal	1m 2s
test-integration-cli	50s
test-integration-packages/agent-runtime	41s
test-integration-common	39s
test-integration-sdk	1m 25s
test-integration-web	52s
test-cli	55s
test-packages/billing	50s
test-web	1m 45s
test-.agents	40s
test-sdk	41s
test-common	49s
test-packages/agent-runtime	55s
test-packages/internal	53s
	16m 59s

Provide feedback